2775232 has 28 divisors (see below), whose sum is σ = 5573776. Its totient is φ = 1370880.

The previous prime is 2775221. The next prime is 2775247. The reversal of 2775232 is 2325772.

It is a d-powerful number, because it can be written as 2¹⁵ + 7 + 7⁶ + 5⁵ + 2¹⁹ + 3⁵ + 2²¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 2775232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6382 + ... + 6802.

2^2775232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2775232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2786888).

2775232 is an abundant number, since it is smaller than the sum of its proper divisors (2798544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2775232 is a wasteful number, since it uses less digits than its factorization.

2775232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 526 counting only the distinct ones).

The product of its digits is 5880, while the sum is 28.

The square root of 2775232 is about 1665.9027582665. The cubic root of 2775232 is about 140.5291539152.

The spelling of 2775232 in words is "two million, seven hundred seventy-five thousand, two hundred thirty-two".